Answer :
Final answer:
Facial shapes are determined by the facial bones, which provide the structure and attachment points for facial muscles. Unlike most muscles, the muscles of facial expression often attach directly to the skin to facilitate movement. The correct answer is d) FACIAL BONES.
Explanation:
Facial shapes are primarily determined by the position and prominence of the facial bones. These bones form the structure of the face and provide cavities for the sense organs (like the eyes and nose) and attachment points for the facial muscles. While hair follicles, skin layers, and muscles contribute to facial texture and movement, the underlying shape is dictated by these bones.
The muscles of facial expression are unique in that many insert into the skin itself rather than onto bone to create facial expressions by moving the skin. This is in contrast to the majority of muscles in the body, which typically move by exerting force on bones.
The position and prominence of the facial bones determine facial shapes. Facial bones provide attachment points for facial muscles, which in turn contribute to the overall shape of the face. These bones also form cavities for the sense organs, such as the eyes, mouth, and nose.
